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Related Experiment Videos

Can the task-cuing paradigm measure an endogenous task-set reconfiguration process?

Stephen Monsell1, Guy A Mizon

  • 1School of Psychology, University of Exeter, Exeter, United Kingdom. s.monsell@ex.ac.uk

Journal of Experimental Psychology. Human Perception and Performance
|July 11, 2006
PubMed
Summary
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Task-switch costs, which reflect cognitive control, are not eliminated by preparation when task changes are infrequent. This suggests anticipatory task-set reconfiguration is possible and measurable.

Area of Science:

  • Cognitive Psychology
  • Neuroscience

Background:

  • Task-switch costs are often used to measure cognitive control and preparation.
  • Logan and Bundesen (2003) claimed that task-switch costs are eliminated when cue repetition is controlled, challenging their role in indexing endogenous control.

Purpose of the Study:

  • To investigate whether task-switch costs and their reduction with preparation are eliminated under specific conditions, as claimed by Logan and Bundesen (2003).
  • To determine the role of task-change probability in observing task-switch costs and anticipatory task-set reconfiguration.

Main Methods:

  • Six task-cuing experiments were conducted, varying the cue-stimulus interval.
  • The probability of a task change was manipulated across experiments.
  • Control for cue repetition was implemented.

Related Experiment Videos

Main Results:

  • Experiment 1 replicated Logan and Bundesen's finding of eliminated task-switch costs.
  • Experiments 2 and 3 demonstrated substantial task-switch costs that decreased with longer cue-stimulus intervals.
  • Experiments 4-6 showed that low task-change probabilities elicited robust evidence of anticipatory task-set reconfiguration.

Conclusions:

  • Task-switch costs are not universally eliminated and can persist even with preparation.
  • The probability of a task change is a critical factor influencing the observation of task-switch costs and anticipatory reconfiguration.
  • Anticipatory task-set reconfiguration can be reliably observed when task-change probability is sufficiently low.